package jdbc0830;
/**
 * 删除用户数据，要求用预编译SQL
 */

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;

public class Test2 {
    public static void main(String[] args) {
        UserInfo userInfo=InputUtil.getInputObject(new UserInfo(),"删除用户","删除");
        try (Connection con=DBUtil.getConnection();) {

            String sql="DELETE FROM userinfo "+
                    " WHERE username=?";
            PreparedStatement ps=con.prepareStatement(sql);
            ps.setString(1, userInfo.getUsername());
            int num=ps.executeUpdate();
            if (num>0){
                System.out.println("删除用户"+userInfo.getUsername());

            }else {
                System.out.println("删除失败");
            }

        } catch (SQLException e) {
            e.printStackTrace();
        }

    }
}
